Jordan



Aug. 18, 1959 v w. SUBART I 2,900,141

JORDAN Filed May 21, 1956 4 Sheets-Sheet 1 Will/am .Subarf INVENTOR.

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JORDAN 4 Sheets-Sheet 3 Filed May 21, 1956 Will/am Sub arr- INVENTOR. @6 3 BY QM M /mam w; SUBART Aug. 18, 1959 JORDAN 4 Sheets-Sheet 4 Filed 'May 21, 1956 William 51mm INVENTOR. 4053 Anonlqs United States Patent JORDAN William Subart, Merritton, Ontario, Canada; Charles Villas, Merritton, Ontario, Canada, and John Doran McNamara, vThorold, Ontario, Canada, executors of the estate of said William Subart, deceased, assiguors to Charles Vidas, individually Application May 21, 1956, Serial No. 586,171

11 Claims. (Cl. 241--155) This invention relates in general to new and useful improvements in paper making machines, and more specifically to an improved machine of the Jordan engine type. In the making of paper, it is necessary that there be provided pulp of a desired consistency. The pulp is initially formed in a machine called a pulper in which paper stock and other raw material is mixed with chemicals and then beat into a pulp in one operation. Next the pulp passes into a refiner where the size of fibers of the pulp is controlled. Finally the pulp passes into a machine which is generally referred to as a Jordan engine. This machine is generally of a single pass .type so that there is no control on the operation of this machine. Heretobefore there have been devised machines of the Jordan engine type which include two stages. However, the stages have been in longitudinal alignment thereby requiring a relatively large machine and taking up valuable space particularly in view of the fact that the passage of pulp through a Jordan engine type machine mustbehorizontal for all practical purposes.

It is therefore the primary object of thisinvention to provide an improved machine for refining paper pulp of the Jordan engine type which operates on the pulp in two stages, the two stages of the machine being concentric whereby :a minimum of space is required.

Another object of this invention is to provide a paper pulp refining machine which is of the two stage type, the machine being provided with suitable passages whereby pulp may be selectively introduced to the various stages and be circulated as desired in order that control as to the functioning of the machine may be-readily had.

In the making of pulp in a paper making process, in

certain instances nearly 100% of the materials will be in the form of waste paper which may be readily reduced to the desired pulp state. On the other hand, when relatively strong paper is being formed, a large quantity of rag stock will be utilized in making the pulp. Thus the pulp passing into the pulp refining machine, which is the subject of this invention, willgreatly vary in its consistency and it is therefore a further object of this invention'to provide a pulp refining machine which is so constructed whereby the refining operationon the pulp may be controlled both through the place of introduction of the pulp and recirculating of the pulp as deemed necessary.

A still further object of this invention is to provide an improved machine for'refining paper pulp, the machine being so constructed whereby it may be readily disassembled forrepairs and replacement.

- A still further object of this invention is to provide an improved machine for use in refining paper pulp, the machine being of .a .two stage construction and being intended, when desired, to replace existing separate pulp treating :machines which are commonly referred to as refiners andflordan engines.

.-"l hcse.together with other objects and advantages which willbecome subsequently apparent reside in the details of c ns ru on and o erationasm e.t l yhere a t d panying drawings forming apart hereof, wherein like numerals refer to like parts throughout, and in which:

a Figure 1 is an end elevational view of the inlet end of the machine for refining paper pulp which is the subject of this invention and shows the general details thereof;

Figure 2 is an elevational view of the opposite end of the paper pulp refining machine and shows the details of the outlet thereof;

Figure 3 is a longitudinal vertical sectional view taken substantially upon the plane indicated by the section line C 33 of Figure 2 and shows the specific internal construction of the machine for refining paper pulp including the specific details of the piping thereof;

Figure 4 is a fragmentary transverse vertical sectional view taken substantially upon the plane indicated by the section line 44 of Figure 3 and shows the specific details of the pulp treating blading of the machine and the arrangement of pulp passages at one end thereof;

Figure 5 is a fragmentary transverse vertical sectional view taken substantially upon the plane indicated by the section line 5-5 of Figure 3 and shows the details of the opposite end of the machine including the mounting of a driving plate on a drive shaft of the machine;

Figure 6 is an enlarged transverse vertical sectional view taken substantially upon the plane indicated by the section line 6-6 of Figure 3 and shows the specific details of all of the blading of the machine; and

Figure 7 is an enlarged perspective view of a rotor of the machine and shows the specific details thereof.

Referring now to the drawings in detail, it will be seen that there is illustrated the machine for refining paper pulp which is the subject of this invention, the machine being referred to in general by the reference numeral 10. The machine 10 includes a generally conical shell which is referred to in general by the reference numeral 12. The shell 12 includes a cylindrical small end portion 14 and a cylindrical large end portion 16 which is spaced from the small end portion '14. Extending between and connecting together the end portions 14 and '16 is a conical intermediate portion 18.

Closing the small end of the shell 12 is an end plate 20. The end plate 20 is secured to the shell 12 by a plurality of circumferentially spaced fasteners 22 which are posi tioned adjacent the periphery of the plate 20.

A second plate 2.4 closes the large end of the shell 12. Like the plate 120, the plate 24 is secured in place by a plurality of circumferentially spaced fasteners 26 which are disposed adjacent the periphery of the plate 24.

The end plate 20 is provided with a central recess in the inner surface thereof, the recess being referred to by the 3 reference numeral 28. Seated in the recess 28 is one end of a core St The core 30 is secured in place by a plurality of circumferentially spaced fasteners 32 and 34. The fasteners 34 are longer than the fasteners 32 and have a dual purpose, as will be described in more detail hereinafter. The core 30 has a cylindrical outer end portion 36 and a conical outer portion 38. The taper of the conical portion 38 is reversed to that of the taper of the conical portion 18, the conical portions 18 and 38 being longitudinally coextensive.

Extending through the end plates 20 and 24 and suitably journaled therein is, an elongated drive shaft 40 which may be suitably connected to any power unit. Mounted on the drive shaft 40 intermediate the core 30 and the end plate 24 is a driving plate 42. The driving plate .42 has a hub portion 44 which projects towards the end plate 24 and which is suitably adjustably secured on the shaft 40 by means of a key 46 and suitable fasteners 48, as is best illustrated in Figure 6; It is to be noted that the end plate 24-is outwardly bowed as at 50 to'clear the hub 44. Itis to be also noted that the end plate 24.

Patented Aug. 18, 1959 carries a suitable seal assembly 52 for sealing the shaft 40 with respect to the, end plate 24. A similar seal assembly 54 is carried by the end plate 20 for sealing the shaft 40 with respect thereto.

Secured to the face of the driving plate '42 remote from the end plate 24 is a rotor which is referred to in general by the reference numeral 26. The rotor 56 includes a cylindrical portion 58 adjacent the driving plate 42 and a doubled tapered portion 60. The portion 60 presents a conical face 62 which is complementary to the conical portion 18. The portion 60 also presents an in ner conical face 64 which is complementary to the conical portion 38.

In order that the rotor 56 may be removably secured to the driving plate 42 and properly centered with respect to theshaft 40, the driving plate 42 is provided on the face thereof remote from the end plate 24 with an annular positioning ring 66. The positioning ring 66 is received in a complementary annular groove 68 in the rotor 56. Suitable fasteners 70 are used to secure the rotor 56 to the driving plate 42.

In order that pulp passing through the machine 10 may be properly comminuted, there is secured to the inner face of the conical portion 18 a blade assembly which is referred to by the reference numeral 72. A similar blade assembly 74 is secured to the outer face 62 of the rotor 56. Secured to the conical portion 38 of the core 30 is a blade assembly 76. A complementary blade assembly 78 is secured to the inner surface 64 of the rotor 56.

Referring now to Figure 7 in particular, it will be seen that the blade assembly 78 includes a plurality of longitudinally extending bars 80. The bars 80 are separated by suitable filler strips 82. The bars 80 are preferably formed of bronze or brass whereas the filler strips 82 are formed of wood. Disposed intermediate the bars 80 at the large portion of the outer surface 62 are intermediate bars 84. The bars 84 do not extend the full length of the outer surface 62and are used to compensate for the difference in diameter between opposite ends of the rotor 56. Inasmuch as the blade assemblies 72, 76 and 78 are identical with the blade assembly 76, a further descrip tion of the blade assemblies need not be made here.

The shell 12 is mounted on a floor or other supporting surface 86 by means of suitable brackets 88. Mounted upon the shell is a suitable pulp'container 90. Extending downwardly from the pulp container and communicated therewith is a main pulp supply pipe 92. The pulp supply pipe 02 includes a fitting 94 which is secured to the end plate 20 by the fasteners 34 and additional fasteners 96. The end plate 20 includes an inlet opening 98 which is aligned with an inlet portion 100 in the core 30. The core 30 also includes a longitudinal extending, centrally located inlet passage 102 which is communicated with the inlet port 100.

The relationship between the driving plate 42, the core 30 and the rotor 56 is such so as to provide an inlet reservoir area 104 which is communicated with the pulp inlet passage 102. The inlet reservoir 104- is communicated with the space between the blade assemblies 76 and 78, the blade assemblies 76 and 78 forming what will be considered a first stage, the first stage being referred to by the reference numeral 106. Pulp entering into the first stage 106 will pass between the core 30 and the rotor 56 towards the end plate 20.

Surrounding the cylindrical portion 36 of the core 30 and defined by the cylindrical portion 36, the cylindrical portion 14, the end plate 20 and the rotor 56 is an annular mixing chamber 108. The annular mixing chamber 108 communicates the first stage 106 with the second stage 110 formed by the blade assemblies 72 and 74. Thus pulp passing through the first stage 106 will pass intothe mixing chamber 103 and then into the second stage 110. V p

The end plate 24 is so spaced from the driving plate 42 to provide a combined mixing and discharge cham- 4 ber 112. The combined mixing and discharge chamber 112 is communicated with an elbow fitting 114 which is secured to the end plate 24 in alignment with a discharge portion 116 formed therein. Connected to the elbow fitting 114 is a T-fitting 118 which has connected thereto a discharge pipe 120.

At this time it is pointed out that the end plate 24 is provided with a plurality of circumferentially spaced discharge ports 116. With the exception of the one discharge port 116 to which the elbow fitting 114 is connected and communicated, the remaining discharge ports 116 are closed by suitable plates 122 which are secured f to the end plate 24 by fasteners 124. This'permits a wide range of connections for the discharge pipe 120. Also connected to the pulp container is a T-fitting 126 which will be considered an auxiliary pulp feed pipe. The T-fitting 126 is communicated with the pulp container 90 and passage of pulp into the T-fitting 126 is controlled by a suitable valve member 128. The lower end of the T-fitting 126 is connected to a fitting 130 which is carried by the shell 12 and which communicates the T-fitting 126 with the mixing chamber 108.

Extending between the T-fitting 118 and the T-fitting 126 is a recirculating line 132. Mounted in the recircu-.

lating line 132 is a control valve 134.

In order to ensure the proper circulation of pulp through the machine 10, there is mounted on the shaft 40 an impeller 136. The impeller 136 is positioned within the inlet passage 102, as is best illustrated in Figure 3.

Although the machine 10 may be used both as a refiner and as a Jordan machine simultaneously with the first stage 106 forming the refiner and the second stage forming the Jordan machine, the machine 10 will be primarily described as a two-stage machine.

In the normal operation of the machine 10 pulp will flow from the pulp container 90 down through the main pulp supply line 92 into the fitting 94 and then into the inlet passage 102. The pulp will be propelled through the inlet passage 102 by the impeller 136 and will enter into the reservoir 104. The pulp will then pass through the first stage 106 and exit into the mixing chamber 108. The pulp will then pass from the mixing chamber 108 into the second stage 110 from where it enters into the combined mixing and discharge chamber 112. The pulp will then pass out of the elbow 114 up through the T- fitting 118 and out through the discharge pipe 120.

The above flow sequence is for that of conventional pulp. However, in certain instances the pulp will be formed primarily of waste paper and will be relatively soft .to begin with. In such event, the valve 128 will be opened so that a proper quantity of the pulpwill be introduced into pulp passing through the first stage 106 and mixed therewith in the mixing chamber 108. The mixed pulp will then pass through the second stage 110 and out-in the normal manner.

When the pulp is formed of a large percentage of rag stock to make a stronger paper, a greater amount of refining is necessary. In this instance the valve 128 will remain closed and the pulp will pass through the machine 10 in the conventional manner. However, the valve 134 will be opened to circulate a predetermined amount of the pulp back into the mixing chamber 108 so that pulp of the desired consistency will finally exit through the discharge pipe 120.

From the foregoing description of the present invention, it will be readily apparent that there has been devised a machine for refining paper pulp which is not only of the two-stage type, but is also provided with suitable controls and pulp supply pipes and passages whereby the consistency of the pulp passing out of thedischarge pipe may be controlled as desired.

Itis to be readily apparent that due to the mounting of the end plates 20 and 24, the entire machine'10 may be readily disassembled for the replacement of the bars 5 80 and 84 and the fillers 82. Of course, the end plates 20 and 22 make the other components of the machine readily accessible for repairs.

The foregoing is considered as illustrative only of the principles of the invention. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the invention to the exact construction and operation shown and described, and accordingly, all suitable modifications and equivalents may be resorted to, falling within the scope of the invention as claimed.

What is claimed as new is as follows:

1. A machine for refining paper pulp comprising a fixed shell, end plates secured to said shell and closing opposite ends thereof, a fixed core disposed within sald shell between said end plates, means securing said core to one of said end plates in concentric relation to said shell, a rotor, mounting means secured to said rotor mounting said rotor for rotation relative to and closely adjacent said shell and said core, said rotor having inner andouter blading, said shell and said core having blading opposing said rotor blading and cooperating therewith, means including a central pulp inlet passage for distributing pulp between said core and said rotor, means including a mixing chamber for receiving pulp from between said core and said rotor and directing the pulp in be tween said rotor and said shell, said mixing chamber being in communication with the blading of said core, said rotor and said shell at one end thereof, and means including a'combined mixing and discharge chamber for receiving pulp from between said rotor and said shell.

2. A machine for refining paper pulp of claim 1 wherein said end plates are removable from said shell to facilitatedisassembling and repairing of said shell, said core and said rotor.

3. A machine for refining paper pulp comprisinga fixed shell, end plates secured to said shell and closing opposite ends thereof, a fixed core disposed within said shell between said end plates, means securing said'core to one of said end plates in concentric relation to said shell, a rotor, mounting means secured to said rotor mounting said rotor for rotation relative to and closely adjacent said shell and said core, said rotor having inner andouter blading, said shell and said core having blading opposing said rotor blading and cooperating therewith, means including a central pulp inlet passage for distributing pulp between said core and said rotor, means includinga mixing chamber for receiving pulp from between said] core and said rotor and directing the pulp I in between said'rotor and said shell, said mixing chamber being in communication with the blading of said core, said rotor and said shell at one end thereof, means including a combined mixing and discharge chamber for receiving pulp from between said rotor and said shell, a main pulp supply line connected to said inlet passage, and an auxiliary pulp supply line connected to said mixing cham her.

4. A machine for refining paper pulp comprising a fixed shell, end plates secured to said shell and closing opposite ends thereof, a fixed core disposed within said shell between said end plates, means securing said core to one of said end plates in concentric relation to said shell, a rotor, mounting means secured to said rotor mounting said rotor for rotation relative to and closely adjacent said shell and said core, said rotor having inner and outer blading, said shell and said core having blading opposing said rotor blading and cooperating therewith, means including a central pulp inlet passage for distributing pulp between said core and said rotor, means including. a mixing chamber for receiving pulp from between said core and said rotor and directing the pulp in between said rotor and said shell, said mixing chamber v being in communication with the blading of said core, said rotor and said shell at one end thereof, means including a combined mixing and discharge chamber for receiving pulp from between said rotor and said shell, a main pulp supply line connected to said inlet passage, an auxiliary pulp supply line connected to said mixing chamto one of said end plates in concentric relation to said shell, a rotor, mounting means secured to said rotor mounting said rotor for rotation relative to and closely adjacent said shell and said core, said rotor having inner and router blading, said shell and said core having blading opposing said rotor blading and cooperating therewith, means including a central pulp inlet passage for distributing pulp between said core and said rotor, means including a mixing chamber for receiving pulp from between said core and said rotor and directing the pulp in between said rotor and said shell, said mixing chamber being in communication with the blading of said core, said rotor and said shell at one end thereof, and means includinga combined mixing and discharge chamber for receiving pulp from between said rotor and said shell, said pulp inlet passage extending longitudinally through said core.

6. A machine for refining paper pulp comprising a fixed shell, end plates secured'to said shell and closing 'opposite ends thereof, a fixed core disposed within said ing a mixing chamber for receiving pulp from between said core and said rotor and directing the pulp in between V said rotor and said shell, said mixing chamber being in communication with the blading of said core, said rotor and said shell at one end thereof, means including a combined mixing and discharge chamber for receiving pulp from betweensaid rotor and said shell, said pulp inlet passage extending longitudinally through said core,

a' shaft extending through said pulp inlet passage, said shaft being 'apart of said mounting means for'sard rotor,

and pulp feed-means on said shaft within said pulp inlet" passage.

7. A machine for refining paper pulp comprising a fixed shell, end plates secured to said shell and closing opposite ends thereof, a fixed core disposed within said shell between said end plates, means securing said core to one of said end plates in concentric relation to said shell, a rotor, mounting means secured to said rotor mounting said rotor for rotation relative to and closely adjacent said shell and said core, said rotor having inner andouter blading, said shell and said core having blading opposing said rotor blading and cooperating therewith, means including a central pulp inlet passage for distributing pulpbetween said core and said rotor, means including a mixing chamber for receiving pulp from between 8. A machine for refining paper pulp comprising a fixed shell, end plates secured to said shell and closing opposite ends thereof, a fixed core disposed within said shell between said end plates, means securing said core to one ofsaid end plates in concentric relation to said shell, a rotor, mounting means secured to said rotor mounting said rotor for rotation relative to and closely adjacent said shell and said core, said rotor having inner and outer blading, said shell and said core having blading opposing said rotor blading and cooperating therewith, means including a central pulp inlet passage for distributing pulp between said core and said rotor, means including a mixing chamber for receiving pulp from between said core and said rotor and directing the pulp in between said rotor and said shell, said mixing chamber being in communication with the blading of said core, said rotor and said shell at one end thereof, and means including a combined mixing and discharge chamber for receiving pulp from between said rotor and said shell, said mixing chamber surrounding said core adjacent one end plate with said one end plate forming a wall of said mixing chamber.

9. A machine for. refining paper pulp comprising a fixed shell, end plates secured to said shell and closing opposite ends thereof, a fixed core disposed within said shell between said end plates, means securing said core to one of said end plates in concentric relation to said shell, a rotor, mounting means secured to said rotor mounting said rotor for rotation relative to and closely adjacent'said shell and said core, said rotor having inner and outer blading, said shell and said core having blading opposing said rotor blading and cooperating therewith, means including a central pulp inlet passage for distributing pulp between said core and said rotor, means including a mixing chamber for receiving pulp from between said core and said rotor and directing the pulp in between said rotor and said shell, said mixing chamber being in communication with the blading of said core, said rotor and said shell at one end thereof, and means including a combined mixing and discharge chamber for receiving pulp from between said rotor and said shell, said shell having a conical interior surface, said rotor having a conical outer surface complementary to said shell interior surface.

10. A machine for refining paper pulp comprising a fixed shell, end plates secured to said shell and closing opposite ends thereof, a fixed core disposed within said shell between said end plates, means securing said core to one of said end plates in concentric relation to said shell, a rotor, mounting means secured to said rotor mounting said rotor for rotation relative 0 and closely adjacent said shell and said core, said rotor having inner and outer blading, said shell and said core having blading opposing said rotor blading and cooperating therewith, means including a central pulp inlet passage for distributing pulp between said core and said rotor, means including a mixing chamber for receiving pulp from between said core and said rotor and directing the pulp in between said rotor and said shell, said mixing chamber being in communication with the blading of said core, said rotor and said shell at one end thereof, and means including a combined mixing and discharge chamber for receiving pulp from between said rotor and said shell, said core having a conical outer surface, said rotor having a conical inner surface complementary to said core. a

11'. A machine for refining paper pulp comprising a fixed shell, end plates secured to said shell and closing opposite ends thereof, a fixed core disposed within said shell between said end plates, means securing said core to one of said end plates in concentric relation to said shell, a rotor, mounting means secured to said rotor mounting said rotor for rotation relative to and closely adjacent said shell and said core, said rotor having inner s. r and outer blading, said shell and said core having blading 7. pulp from between said rotor and said shell, said shell having a conical interior surface, said rotor having a conical outer surface complementary to said shell interior surface, said core having a conical outer surface, said rotor having a conical inner surface complementary to said core.

References Cited in the file of this patent UNITED STATES PATENTS 253,655 Allen Feb. 14, 1882 1,928,052 Fraser Sept. 26, 1933 2,207,931 Morden July 16, 1940 2,289,612 Wells July 24, 1942 2,294,060 Weiner Aug. 28, 1942. 2,547,830 Morden Apr. 3, 1951 

